Wire stretcher



Mmh 18, 1930.

A. ANDERSON' 1,751,381

WIRE STRETGHER Filed Oct. 7 1925 2 Sheets-Sheet l Patented M'ari 18,1930 UNITED STATES AUGUST ANDERSON, F SHOSHONI; wisomrne WIREswan-sienna Application filed. October 7,1925. seria1.no. .e1',05e.jf t

release the wire by slacking the wire, as it will grip and hold a wirewithout a binding action between the parts which tends to make thereleasing of the wire diflicult.

A further object of the inventian is to make the chain wheel of greatstrength so thatthere is no danger of its breaking, and of suchconstruction that it will grip the'chain without danger of the chainslipping.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to

be hereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denotelike orcorresponding parts throughout the several views, and in which Figure 1is a viewshowing the device in use.

Figure 2 is a longitudinal sectional view through the body of thedevice. 1

Figure 3 is a section on line 33 of Fig ure 2.

Figure 4 is a section on line tof Figure 2.

Figure 5 is a sectional chain wheel.

Figure'6 is a view. of the holding or grip- 45 ping member.

Figure 7 is a view of the gripping lever of the holding member.

The body A of the device is formed of a frame 5 in which is journaledashaft 6,; the ends of which extend from the frame and are shaped toreceive the socket part of a handle view through the will cause thechainto pass through, the de-'.

rection.

tions bent overthe partsof-the frame and -to the member 19 by a pin 23',and the ex- 7 so that the shaftcan be turned by hand; A chain wheel 8 isconnected with the shaft-and is located" between the two parts of theframe. Y Thi's w-hee'l is formedwithf-the projections 9 for; engagingthe spaces formed by the links of the chain:10'andthe'pairsofspaced'project-ions 11 which form recesses for receiving the edges ofthe linksg'as clearly shownin Figure 2. Theedges ofthe portions formingthe-projections 9 are curved, as at 12, to re-' ceive the curved endportions of the links.

Thus when the wheel is turned,*the projec tions engaging alternate linksof the chain vice. A double pawl 13 is'pivoted in the frame and preventsretrograde-action of the chain wheel. B'y reversing this dog, the

chain wheel can'be rotatedin an opposite di The pawli's" held ineitherone of'its two positions'by means of'a'spring plunger 14 carriedby theframe, and engaging the wedge shaped'cent'er. of the, pawl. Spacermembers '15 are placed in, the frame to prevent side play of the pawl,these members having por- 75 the pivot pin 16' of the pawl passesthrough said members. I I p A swivel 17 .is' placed in one end of theframe and a chain 18'fis connected with this swivel. A gripping*member'B. is fastenedto so the end of thischain andsimilar members Gand D' are attached'flto the end ofthe chain, 10.,

' Each member 'ce mprises, an L-shaped body 19, which is providedwith acurved handle part 20 at the junction of its two arms and which has aneye 21 at the extremity "of one arm for receiving a terminal link of achain. Theother arm is of greater dimensions and has a beveled end 22. Alever 23 is pivoted tremity of this lever is bent over to form a groove24, with a slot 25 in the bent over portion, the part to one side of theslot being bent outwardly to form an ear 26. v

The wire to be gripped is placed in the groove 24 and then bent andpassedthrough the slot 25 and then the lever swung against the member 19so that. the beveled! part 22 W111 enter the groove 24. Thus a tensionon the parts will cause the lever 23 to clamp the. 00

Wire between itself and the end 22 of the member 19, and the greater thepulling force, the greater will be the clamping action. As soon as thewire is slacked, however, the lever 5 23 will swing away from the member19 so that the wire can be easily released. One of the gripping memberson chain is fastened to one wire and the gripping member B on chain 18is fastened to the second wire. 10 Then by turning the shaft bymeans ofthe handle 7 the chain will be pulled through the device, so that thetwo wires will be brought towards each other. When the member D reachesthe body A, the member 0 is gripped on the wire and the member Dreleased. Then the pawl is reversed, the handle 7 placed in engagementwith the other end of the shaft and the body A turned over so that whenthe handle is turned, the chain will 7 20 be fed through the device inan opposite direction and take up further of the slack in the wires.This operation is repeated until the wires are sufficiently taut. t 1The device is very compact, can be manufactured to sell at low cost andthe gripping members can be quickly and easily placed on the wires andjustas easily released therefrom. V c What I claim is: 7 A wirestretcher including a chain wheel mounted for rotation, a chain, saidwheel comprising opposed side plates each of subst-antiallytriangularcontour providing corner projections, the corner projections of therespective plates being arranged in confront- .ing relation, said wheelalso including center ,projections arranged between the corner pro-.jections and the triangular-shaped side plates and extending anappreciable distance be- 40 yond the edges of said triangular plates toreceive the links of the chain, the side edges of the triangular-shapedplates being of a length substantially equalto the length of p the link,whereby the latter lies fiat upon the 1 adjacent side edges of thetriangular-shaped plates throughout their length while engaged by theadjacent center projection. I In testimony whereof I aflix mysignature.l AUGUST ANDERSON.

